Evidence of foreign lawE+W

19.  Where evidence as to the law of any country or territory outside England and Wales is required on any application for a grant, the [F1district judge or] registrar may accept—

(a)an affidavit [F2or a witness statement] from any person whom, having regard to the particulars of his knowledge or experience given in the affidavit [F3or in the witness statement], he regards as suitably qualified to give expert evidence of the law in question; or

(b)a certificate by, or an act before, a notary practising in the country or territory concerned.